This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Influence of Natural Gas Composition on Turbocharged Stoichiometric SI Engine Performance
Technical Paper
2012-01-1647
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In certain applications, the use of natural gas can be
beneficial when compared to conventional road transportation fuels.
Benefits include fuel diversification and CO₂ reduction, allowing
future emissions regulations to be met. The use of natural gas in
vehicles will also help to prepare the fuel and service
infrastructure for future transition to gaseous renewable
fuels.
The composition of natural gas varies depending on its source,
and engine manufacturers must be able to account for these
differences. In order to achieve highly fuel flexible engines, the
influence of fuel composition on engine properties must first be
assessed. This demand is especially important for engines with high
power densities.
This paper summarizes knowledge acquired from engine dynamometer
tests for different compositions of natural gas. Various levels of
hydrocarbons and hydrogen in a mixture with methane have been
tested at full load and various engine speeds. The experiments have
been performed on a light-duty turbocharged stoichiometric
spark-ignited truck engine with a wastegate turbocharger and cooled
exhaust gas recirculation. Stoichiometric (closed loop controlled)
engine operation was chosen for all experiments with the aim of
achieving maximum engine power output. Engine response to fuel
quality variations is presented in a form of plots of constant
combustion phasing and constant knock intensity.
Recommended Content
Authors
Topic
Citation
Vavra, J., Takats, M., Klir, V., and Skarohlid, M., "Influence of Natural Gas Composition on Turbocharged Stoichiometric SI Engine Performance," SAE Technical Paper 2012-01-1647, 2012, https://doi.org/10.4271/2012-01-1647.Also In
References
- Kochar, Y. Seitzman, J. Lieuwen, T. Metcalfe, W. Burke, S. Curran, H. Krejci, M. Lowry, W. Petersen, E. Bourque, G. LAMINAR FLAME SPEED MEASUREMENTS AND MODELING OF ALKANE BLENDS AT ELEVATED PRESSURES WITH VARIOUS DILUENTS, GT2011-45122 Proceedings of ASME Turbo Expo 2011 GT2011 Vancouver, British Columbia, Canada 2011
- Natural gas - Designation of the quality of natural gas for use as a compressed fuel for vehicles European Standard EN ISO 15403 2005
- Leiker, M. Christoph, K. Rank, L. M. Cantellieri, W. Pfeifer, U. Evaluation of anti-knocking property of gaseous fuels by means of methane number and its practical applications to gas engines Graz AVL Austria 1972
- Malenshek, M. Olsen, D. B. Methane number testing of alternative gaseous fuels New York Elsevier Ltd. 2008
- Soylu, S. Gerpen, J. “Fuel Effects on the Knocking Limit of a Heavy-Duty Natural Gas Engine,” SAE Technical Paper 981401 1998 10.4271/981401
- Brecq, G. Ramesh, A. Tazerout, M. Le Corre, O. “An Experimental Study of Knock in a Natural Gas Fuelled Spark Ignition Engine,” SAE Technical Paper 2001-01-3562 2001 10.4271/2001-01-3562
- Vávra, J. Bohac, S. Manofsky, L. Lavoie, G. Assanis, D. ICEF2011-60124 Knock in various combustion modes in a Gasoline-fueled Automotive Engine Proceedings of the ASME 2011 Internal Combustion Engine Division Fall Technical Conference [CD-ROM] New York ASME 2011 1 10
- Natural gen Blends Technology Miletto, G. Volpi, E. Metatron Ferrera, M. Gerini, A. Fiat Powertrain Tecnologies Fuganti, A. A position paper of NGVA Europe 2010